Reference meaning
What does this code mean?
The wording below belongs to the named make and communication. Match the complete code, reporting module, model year and engine before applying it.
A code identifies a detected condition, not a part that must automatically be replaced.
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A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
Before replacing a part
Record codes and freeze-frame data. Check battery condition, related codes and visible wiring or hose damage. Follow the vehicle's diagnostic procedure and test results before replacing parts.
Scan worksheet →Manufacturer wording
Source wording can vary by vehicle and suffix. It is shown as written, not as a universal diagnosis.
P0A84Abnormality in HV battery cooling fan drive signal low
P0A84HYBRID BATTERY PACK COOLING FAN 1
Manufacturer communications
4Original wording in English
HINO
Subject vehicles may exhibit an illuminated malfunction indicator lamp with DTC (Diagnostic Trouble Code) P0A82 (Abnormality in function of HV battery cooling fan) or P0A84 (Abnormality in HV battery cooling fan drive signal low) stored in the Hybrid ECU. If either of these DTC's have set, replace the HV blower fan with the upda…
HINO
Correction of workshop manual for Hino COE Revision of Troubleshooting Procedure fot the DTC P0A84 Relevant Model: 2014-15 Hino 155, 195, 155h, 195h.
HINO
SB-15-034 Troubleshooting information and inspection procedure of the DTC P0A84 (TC66) were revised.
TOYOTA
TOYOTA: HYBRID/BATTERY CONTROL SYSTEM. SOME MODEL YEAR TSUTSUMI BUILT VEHICLES MAY EXHIBIT A MIL ON CONDITION WITH DTC P0A84 (HYBRID BATTERY PACK COOLING FAN 1). IMPROVEMENTS HAVE BEEN MADE TO THE HV ECU SOFTWARE TO CORRECT THIS CONDITION. *PE UPDATED 8/28/12. *PE
Check vehicle applicability
11A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| Hino | 195H ↗ | 2015 |
| Hino | 195H ↗ | 2014 |
| Hino | CAB-OVER ↗ | 2015 |
| Hino | CAB-OVER ↗ | 2014 |
| Hino | CONVENTIONAL TRUCKS W/JO8 ↗ | 2015 |
| Hino | CONVENTIONAL TRUCKS W/JO8 ↗ | 2014 |
| Hino | HINO ↗ | Year unknown |
| Hino | JHD2 ↗ | 2014 |
Can I keep driving?
A code alone cannot establish whether driving is safe. A flashing malfunction light, severe shaking, overheating, oil-pressure warning or loss of braking or steering needs prompt attention. Stop in a safe place and seek assistance when control or engine safety is affected. Follow the vehicle handbook.